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[NM015D], Technical Note, Charles Batchelor, July 7th, 1878

Title: [NM015D], Technical Note, Charles Batchelor, July 7th, 1878
Editor's Notes: phonoautograph for experiments on elevated RR
Author: Batchelor, Charles
Date: 1878-07-07
Type: Technical Note
Subject: Microphone and other acoustic devices
Folder ID: NM015-F
Microfilm ID: 6:746
Document ID: NM015D
URL: https://edisondigital.rutgers.edu/document/NM015D
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 6